CDN与P2P混合网络架构下一种基于系统稳定状态的流媒体调度策略

A Stability Based Streaming Media Scheme over CDN and P2P Hybrid Network

针对大规模流媒体系统的稳定性问题,提出在CDN与P2P混合网络架构下的1种基于预防和恢复机制的流媒体调度策略SSBS(scheduling strategy based stability)。首先利用基于可靠度模型的调度算法预防系统不稳定状态,其次通过系统稳定模型检测系统不稳定状态,采用分级恢复机制使系统快速恢复到稳定状态。实验结果表明该方法能有效控制CDN与P2P混合架构下大规模流媒体系统的稳定性。

This paper presents a streaming media schedule scheme based on preventing and detecting recovery mechanism over CDN and P2P hybrid network,in order to solve the stability problem of the large-scale streaming media VOD system.First and foremost,It use data scheduling algorithm of reliability model to prevent systems instability,then it uses the system stability model to detect the system stability and take advantage of the hierarchical recovery mechanism to enable the system quickly recover to stable state.The simulation result shows that this mechanism can effectively control system stability of large-scale media system in CDN and P2P mixing network architechture.